The builder has recently upgraded the phase 1 ventilation system, which supplies fresh air through the corridors. This upgrade will allow the system to run at a lower speed in warm weather. As a result of this change, you may notice less air blowing from the large vents located in the hallway on each floor. As described in a previous bulletin, this work is being done by the builder as part of the warranty program. This change is designed to improve cooling performance and energy efficiency.